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20-letter words containing f, r, o

  • department of energy — the department of the U.S. federal government that sets forth and maintains the national energy policy, including energy conservation, environmental protection, etc. Abbreviation: DOE.
  • department of health — government ministry for health matters
  • dichloroethyl formal — a colorless liquid, C 5 H 10 O 2 Cl 2 , used chiefly as a solvent and in the manufacture of certain synthetic rubbers.
  • difference threshold — the minimum difference between two stimuli that is just detectable by a person
  • differential housing — the casing that houses the differential of a motor vehicle
  • dirac delta function — delta function.
  • district of columbia — a federal area in the E United States, on the Potomac, coextensive with the federal capital, Washington. 69 sq. mi. (179 sq. km). Abbreviation: DC (for use with zip code), D.C.
  • doctor of philosophy — Also called doctorate. the highest degree awarded by a graduate school, usually to a person who has completed at least three years of graduate study and a dissertation approved by a board of professors.
  • doctor of the church — a title conferred on an ecclesiastic for great learning and saintliness.
  • double fertilization — the fertilization process characteristic of flowering plants, in which one sperm cell of a pollen grain fertilizes an egg cell while a second fuses with two polar nuclei to produce a triploid body that gives rise to the endosperm.
  • due process (of law) — the course of legal proceedings established by the legal system of a nation or state to protect individual rights
  • ecological footprint — a mark left by the shod or unshod foot, as in earth or sand.
  • edward the confessor — Saint, 1002?–66, English king 1042–66: founder of Westminster Abbey.
  • eleanor of aquitaine — ?1122–1204, queen of France (1137–52) by her marriage to Louis VII and queen of England (1154–89) by her marriage to Henry II; mother of the English kings Richard I and John
  • electrode efficiency — the ratio of the amount of metal deposited in an electrolytic cell to that theoretically deposited according to Faraday's laws
  • electronic footprint — data that identifies a computer that has connected to a particular website
  • elizabeth of hungary — Saint. 1207–31, Hungarian princess who devoted herself to charity and asceticism. Feast day: Nov 17 and 19
  • embryo vitrification — a method of in vitro fertilization in which the embryo is exposed to a vitreous solution and frozen before being thawed and implanted into the uterus
  • entry qualifications — the qualifications people wishing to enter an organization, university, etc, have to have
  • equity of redemption — the right that a mortgager has in equity to redeem his property on payment of the sum owing, even though the sum is overdue
  • erythema infectiosum — a mild infectious disease of childhood, caused by a virus, characterized by fever and a red rash spreading from the cheeks to the limbs and trunk
  • european social fund — one of the four Structural Funds of the European Union which aims to support employment and the economic and social well-being of EU member countries
  • factor in (or into) — to include as a factor
  • factor of production — any instrument, agent, etc., employed in the production of goods and services.
  • fast-breeder reactor — a breeder reactor in which there is no moderator and fission is caused by high-energy neutrons.
  • father of the chapel — (in British trade unions in the publishing and printing industries) a shop steward
  • feast of tabernacles — Sukkoth.
  • feather in one's cap — one of the horny structures forming the principal covering of birds, consisting typically of a hard, tubular portion attached to the body and tapering into a thinner, stemlike portion bearing a series of slender, barbed processes that interlock to form a flat structure on each side.
  • federal constitution — Constitution of the United States.
  • federal reserve note — a form of paper money issued by a Federal Reserve Bank.
  • federation of malaya — a federation of the nine Malay States of the Malay Peninsula and two of the Straits Settlements (Malacca and Penang): formed in 1948: became part of the British Commonwealth in 1957 and joined Malaysia in 1963
  • fermentation alcohol — alcohol (def 1).
  • fermentation-alcohol — Also called ethyl alcohol, grain alcohol, ethanol, fermentation alcohol. a colorless, limpid, volatile, flammable, water-miscible liquid, C 2 H 5 OH, having an etherlike odor and pungent, burning taste, the intoxicating principle of fermented liquors, produced by yeast fermentation of certain carbohydrates, as grains, molasses, starch, or sugar, or obtained synthetically by hydration of ethylene or as a by-product of certain hydrocarbon syntheses: used chiefly as a solvent in the extraction of specific substances, in beverages, medicines, organic synthesis, lotions, tonics, colognes, rubbing compounds, as an automobile radiator antifreeze, and as a rocket fuel. Compare denatured alcohol, methyl alcohol.
  • field ion microscope — a device in which the atomic structure of the surface of a conductor is made visible by introducing helium gas into the device and applying a high voltage to ionize and accelerate the gas toward a fluorescent screen.
  • field-ion microscope — a device in which the atomic structure of the surface of a conductor is made visible by introducing helium gas into the device and applying a high voltage to ionize and accelerate the gas toward a fluorescent screen.
  • fight for one's life — Someone who is fighting for their life is making a great effort to stay alive, either when they are being physically attacked or when they are very ill.
  • file descriptor leak — (programming)   (Or "fd leak" /F D leek/) A kind of programming bug analogous to a core leak, in which a program fails to close file descriptors ("fd"s) after file operations are completed, and thus eventually runs out of them. See leak.
  • financial controller — a senior executive in usually commercial organization who is in charge of financial affairs and oversees such things as the preparation of budgets and accounts
  • first earl of cromer — 1st Earl of, Evelyn Baring.
  • first point of aries — the vernal equinox.
  • first world problems — If you say that someone has First World problems, you mean that their problems are not really very important.
  • first-person shooter — a type of video game in which the player assumes the field of vision of the protagonist, so that the game camera includes the character's weapon, but the rest of the character model is not seen. Abbreviation: FPS.
  • fission-track dating — the dating of samples of minerals by comparing the tracks in them by fission fragments of the uranium nuclei they contain, before and after irradiation by neutrons
  • fixed action pattern — a highly stereotyped pattern of behavior that is characteristic of a particular species.
  • fixed-price contract — a contract in which the price is preset and invariable, regardless of the actual costs of production.
  • flame-fusion process — Verneuil process.
  • flat-plate collector — a type of solar collector consisting of a series of flat glass or plastic plates with black metal surfaces that absorb solar energy.
  • flavour of the month — If you think that something or someone is very popular at a particular time, you can say that they are flavour of the month.
  • flight data recorder — a recording device that records relevant data during an aircraft's flight
  • floodlight projector — a powerful lamp having a reflector curved to produce a floodlight.
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